Honing device



' J. B. KLEIN HONING DEVICE Aug. 28, 1945.

Filed May 22, 1943 y I: 1 I

Milli/2 n INVENTOR BY m 2 X16; ,1.

. ATTORNEYS,

Patented Aug. 28; 1945 HONING DEVICE James B. Klein, Detroit, Miclit, asslgnor to Micromatic Hone Corporation, Detroit, Mich, a corporation of Michigan Application May 22, an, Serial No. reacts Claims. (or. 51-1843) This invention relates to honing devices and particularly to a driving and adjusting head for a honing tool which may be manually and/or fluidly operated for adjusting the radial position of the abrasive elements of the tool.

The driving and adjusting head of the present invention embodies a' honing tool receiver in which the tool may be inserted and locked in position by a, bayonet type of locking joint. An adjusting stem is provided centrally of the tool which projects into a rotatable and longitudinally movable element which produces the stem actua tion. Gear teeth are'provicled on the element which are engaged by the teeth of pinions which are driven by an internal gear from .a sleeve which rotates with the driving head. Suitable means, such as a brake, may be employed for interrupting the rotation of the sleeve and internal gear, the latter of which drives the pinion gears and the rotatable element,'which' element rotates the stem. A threaded end on the stem produces the longitudinal movement of the cam element within the tool body.

The driving shank of the device is hollow to receive a, longitudinally movable member, which may be actuated by a rod in the honing machine on which the tool is supported and driven. The rod produces a direct longitudinal movement to the adjusting element, the stem and the cam element within the tool body. The driving andadjusting head of the present inventionis universal in application since it may be actuated by man ual means to rotate the stem to operate the cam element longitudinally within the tool body. A direct longitudinal thrust may be applied to the stem to also actuate the adjusting element alone or in combination with the manually actuated means to produce the radial movement of the abrasive stones. a

Accordingly, the main objects of this invention are: to provide a universal driving and adjusting head which will produce a longitudinal movement of the adjusting element in the tofol body, either by a movement in rotation, or by a movement parallel to the axis of the body; to provide a, driving and adjusting head for a tool which supports and drives a honing tool and which produces the radial adjustment of the tool stones by movement in rotation and/or by a direct linear movement; to provide a driving and adjusting head for a-honing tool having a hollow stem through which the cam element for the honing stones may be directly I moved longitudinally, which longitudinal movement may also be produced by rotating certain parts of the head; and, in general, to provide a driving and'adjusting head which may be applied to different types of machines and honing tools for producing the stone adjustment of the tool, all of which is simple in construction, positive in operation, and economical of manufacture.

- Other objects and features of novelty of this invention wii1 be specifically pointed out Or will be; come apparent when referring, for a better understanding of the inventioni. to the following description taken in conjunction with the accompanying drawing, wherein:

Figure 1 is a sectional view of a driving and adjusting head for a honing tool, embodying features of this invention; 7

Fig. 2 is an enlarged sectional view of the structure illustrated in Fig. 1, taken on the line 2--2 thereof; and,

Fig. 3 is a sectional view of the structure, similar to that illustrated in Fig. 1, showing a modified formof the invention.

As the honing art has progressed from its inception, various types of driving heads and ma chine have been constructed and employed for operating various types of tools. For certain designs of tools and machines, specific types of driving and adjusting heads must be employed, while for certain other tools and machines other types of driving and adjustin heads are utilized. This resulted in considerable confusion in the honing art and prevented the interchange of tools, driving and adjusting heads on the different machines.

To overcome this difficulty, the present driving and adjusting head was invented which may be attached to substantially any type of machine and which is capable of adjusting substantially any type of tool. The diiiiculty in inconvenience heretofore experienced because of the inability to interchange the driving heads, tools and machines has thereby been overcome.

Referring to Figs. 1 and 2, the driving and adjusting head it embodies a body i2 having an enlarged end opening it in which the stem it of the honing tool 35 may be inserted. Pins are herein illustrated extending from the stem It which form abayonet lock in slots provided in the body i2. The longitudinally movable sleeve it extends over the end of the body i2 having a headed pin I? in the wall thereof, which intercepts the bayonet slot and locks the pins of the stem l4 therein. The sleeve 16 is urged downwardly by a spring i8 and is prevented from moving from the end of the body I2 by a plurality of pins it,

A sleeve 2! extends over the central portion of the body I 2 having an enlarged opening to receive the upper end of the sleeve l6 and the spring [8.

I the plurality of ball bearings 29..

The sleeve is splined at 3| while a similar mating spline 32 is carried on the inner upper edge of the collar 21. The engagement of the splines 3| and 32 causes the sleeve and collar to rotate together, the collar 21 being carried by the sleeve 28. The sleeve 28 has a brake or hand gripped sleeve 33 afiixed thereto by a key 34 in the conventional manner. The sleeve 33 carries a plurality of spring pressed pins 35 which maintain the splines on the collar 21 in engagement with the splines on the sleeve 23.

The sleeve 28 also has on its iner lower end an internal ring gear 36, the teeth of which are meshed with the teeth of one or a plurality of pinion gears 31 which are journaled in the body l2 by pins 38 projecting in slots 33 therein The teeth of the pinions 3! also engage the teeth 4| on a rotatable and longitudinally movable ad- J'ustable element 42 journaled within the hollow interior of the body l2. The element is prevented from dropping from the body l2 by the projecting end 24 of the screw 22 when the tool I is removed from the driving and adjusting head.

The adjusting element 42 base square aperture 43 in its lower end in which a square shank 44 of 1 an adjusting rod 45 of the tool I5 projects to rotate therewith. A shouldered plug 46 is inserted in the opposite end of the adjusting element 42 in position to be contacted by a longitudinally movable rod 41. The rod-isprovided with a slot 46 which may be aligned with a slot in the tapered stem 49 of the driving head 5| when the stem is to be separated from the receiving and supporting end of the spindl of the machine which drives the tool in rotation and reciprocation.

The spindleof the machine is hollow to receive a push rod 52 which may be actuated by a piston and cylinder, a cam, or by other means carried by the machine. The push rod 52 engages and moves the rod 41 downwardly against the plug 46,

which moves the adjusting element 42 to apply a longitudinal movement to the adjusting rod 45 of the tool. The rod 45 has a collar 53 secured thereon by a pin 54 again'st which a spring 55 abuts for urging the rod 45 upwardly. I

The driving shank 5| has a pair of spaced ends 51 which are secured to a square block 56 by pins 59. Similar pins join similar projecting ends of the body I 2 to the block 58 which are ofiset from the ends 57 so as to have the pins 53 disposed on centerlines 90 apart. This provides auniversal driving connection between the driving shank 5| and the body |2.'

The adjusting rod 45 is provided with a threaded stem 63 on its lower end which is threaded into a longitudinally movable rod 64 which is retained against rotation by a screw 65,.

having its end propecting into a slot 66 in the rod wall. 'The end of the rod 64 terminates in a ball no further actuation of the adjusting 61 which is engaged in-a recess 68 of astem 69 extending from a cam element 'II which adjusts the abrasive stones I2 of the tool radially when moved longitudinally. The truncated conical surfaces 13 and 14 of the elment H engage the sloping surface 15. of the plates 10 which abut the shoes 76 against which the stones are retained by the garter springs TI. The plates, shoes and stones are distributed on the periphery of a cylinder in slots in the tool body 16 which is joined to the stem H by the ball and socket connection A driving connection is provided through the ball and socket connection 8| by the balls 62.

It is to be understood that anytype of tool having a central longitudinally movable cam-element H may be attached to the driving and adjusting head l0, provided a stem l4 and adjusting rod 46, similar to that herein illustrated, are provided thereon. The rod 45 may be movable longitudinally to adjust the tool or it may be mounted for movement primarily in rotation for producing the longitudinal movement of the cam element. The universal head will actuate either type of rod 45 brake element or'retarding efiect on the sleeve 33.' The collar 21 is adjusted on'the splines 3| of the sleeve 28-to separate the projecting lug 26 from to stop 25 a predetermined amount. By periodically applying the torsional .eflect' to the sleeve 33, the rotation of the sleeves 33 and 28 is interrupted. The continued rotation of the sleeves l2 and I4 rotates the pinions 31 relative to the stationary internal gear 36 and produces the rotation of the adjusting element 42 which thereby rotates the adjusting rod 45. The rotation of the rod-45 moves the adjusting rod 64 longitudinally on the thread 63 to shift the cam element 7| longitudinally to radially move the abrasive stones 12. When the'sleeve'2l has been rotarily adjusted to achieve thedesired diameter of the abrasive stones (while the push rod 52 is in 'its downward position), the lug 26 on collar 2lmay be adjusted to abut the stop 25 so as to prevent inadvertent rotation of the sleeve 2|. Upon completion "of the operation, the contraction of the stones occurs when the rod 52 is moved upwardly in the spindle, The stem 45 is then correspondingly retracted by the spring 55 'causing the cam element H to similarly move and permit-the stones to'draw radially inward. A reversal of this procedure will again expand the stones to their initially-adjusted diameter. Thus, sleeve is required except that required to compensate for the-wear of the abrasives' Fig. 3 illustrates the manner in which this device may be used to actuate the expansion of honing tools wherein only rotary actuation of the adjusting rod is permissible. A square rod projects within the square shank 43 of the ad- I justing element 42 and has a threaded end 63 in engagement with the threads of the lower adjusting rod 64. The stem I4 is preferably provided with a cylindrical bushing 86 abutting the end of the element 42 to provide a bearing surface therefor. The adjustment on this tool oc- 'curs by holding the sleeve 33 against rotation as the body l2 is rotated bythe honing machine; The rotation of the adjusting rod 85, efiected thereby, serves toactuate the axial movement of the cam element H through the medium of screw threads. Rotation of this adjusting rod ceases when the lug 26 on collar 21 abuts'the stop 25'thereby requiring sleeve 33 to rotate at the same speed as body l2. If a further diametric increase of the abrasives is required, readjustment of the relationship of position between the splines on sleeve 28, which is keyed to sleeve 33, and the collar 21 is required.

It is to be noted that the thrust rod 41 is not required in this instance as all the operating, as well as the compensating, expansion oi the hone is accomplished by rotary motion solely.

It will be readily apparent from examining'the structure in Figs. 1 and 2 that the head ID for driving and adjusting the tool body is of the universal type which may produce the operation of the tools when requiring a movement of its adjusting element in rotation and/ or reciprocation. Such a head permits any number and different types of tools to be operated from a standard honing machine. Heretofore, it was necessary to supply a driving and adjusting head for each thrust expanded honing tool body which was furnished by the manufacturer. With the universal'head of the present invention, honing bodies may be supplied separately and operated by any. type of machine to which the head'is attached.

What is claimed is:

1. In a driving and adjusting head for a honing tool body, a tool receiving sleeve, a hollow sleeve, longitudinally movable means in-saiddriving member and universaljoint for moving said element in reciprocation, and means within said sleeve for rotating said element.

3. In a driving and adjusting head for a honing tool body, a tool receiving sleeve, means on said sleeve for supporting said tool, a hollow driving member, .hollowmeans for. securing said member on said sleeve to have universal movement therewith, a rotatable adjusting element within said sleeve, a longitudinally movable member in said hollow driving member for moving said elementaxially in said sleeve, said adjusting element havin gear teeth and gear means actuated exteriorly of said sleeve for rotating said element.

.4. A separate'driving and adjusting head for a honing tool body which is expanded and contracted, a sleeve ior releasably receiving and supporting the body and the adjusting member of the tool, a hollow driving stem, a hollow universal connection between said sleeve and stem, a longitudinally extending rotatable member in said sleeve in operative engagement with said adjusting member and disposed in alignment with the opening in said universal joint and stem, and means on said sleeve by which said member is rotated during the operation of said tool.

, 5. .A separate driving and adjusting head'for a honing tool body which is expandedand contracted, a sleeve for releasably receiving and supporting the body and the adjusting member of the tool, a hollowdriving stem, a hollow universal connection between said sleeve and stem, a longitudinally extending rotatable member in said sleeve in operative engagement with said adjusting member and disposed in alignment with the opening in said universal joint and stem, means on said sleeve by which said member is rotated during the operation of said tool,- and means extending through said stem and universal joint for adjustingsaid member axially during the operation.

- JAMES B. KLEIN. 

